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Spitfire 1500 Wiring loom plan

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bazsimoci Avatar
bazsimoci Balázs Kutasi
Várdomb, Tolna, Hungary   HUN
Hi!
I must replace my tired, burned and modified old wiring harness. I just dont want to start with pulling single cabels in the car, and a new loom is pretty expensiv to me...
Then i bougt on the Ebay from USA a very original second hand harness with just few cutted terminals.
I thought i will drawing the harness and measured all the sizes, then later i can made for myself or somebody else can use it as a template. Earlier i didnt find any pictures or description how to do this, then its makes easier to others...
The measures is in mm. This is the part one, i just ended today scetching the part twoo, the wires under the dash.
Here is in larger size:
https://drive.google.com/open?id=0B5zTn4EVjvWPanFDY2pzY2hNN3c



Edited 1 time(s). Last edit at 2017-10-08 12:55 PM by bazsimoci.

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Yellowhawk Valley Avatar
walla walla, washington, USA   USA
1969 Triumph Spitfire "Walla Walla"
1969 Triumph Spitfire "Portland"
1972 Triumph Spitfire MkIV "Spokane"
1975 Triumph Spitfire 1500 "Dayton"    & more
Wow, good luck, looks like something helpful for many in the future.
Dan

Tonyfixit Avatar
Tonyfixit Tony M
Duncan, British Columbia, Canada   CAN
Good for you Balazsthumbs up

I replaced much of my wiring from salvaged wire from wrecked British cars. Fortunately the British standardized their wire colour codes, so for instance, you can pull wire from a Jaguar and have the right colour wire for your Triumph, and likely in munch longer lengths.

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colodad Avatar
colodad Silver Member Calvin Williams
Grand Junction, Colorado, USA   USA
1979 Triumph Spitfire 1500 "Spitty"
Balázs Kutasi, praise the Lord, you answered our question.

We have asked about the ballast wire, where does it come out of the harness, how long is it, how is it connected to the other wires. But no one has yet replied..

I see you have drawn the ballast wire, please take a photo of the harness with wire measurements. post it here.

Thank you in advance for the pictures...

Tonyfixit Avatar
Tonyfixit Tony M
Duncan, British Columbia, Canada   CAN
In reply to # 1490803 by colodad Balázs Kutasi, praise the Lord, you answered our question.

We have asked about the ballast wire, where does it come out of the harness, how long is it, how is it connected to the other wires. But no one has yet replied..

I see you have drawn the ballast wire, please take a photo of the harness with wire measurements. post it here.

Thank you in advance for the pictures...

Yes, as Calvin says this is the Pink and white wire that connects to the white ignition Wire in the loom.

bazsimoci Avatar
bazsimoci Balázs Kutasi
Várdomb, Tolna, Hungary   HUN
Hi!
Accordings to my calculations the ballast wire is 1630mm long, goes from the starter solenoid with the other cables to the junktion to the dashboard and ended with the white cabel to the PDWA lamp and a white cable from the top fuse.
The resistance is 1,3-1,5 Ohm


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bazsimoci Avatar
bazsimoci Balázs Kutasi
Várdomb, Tolna, Hungary   HUN
It happened what i feared from... The american loom doesnt fit with the european wire extension to the rear harness...
The american loom has two 5-er connector, the european has one 7-er...
And the american ignition switch has 7 connector, the european has just 4...
At least the steering column switches, they fit into their place.

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PA080005.JPG    57 KB
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colodad Avatar
colodad Silver Member Calvin Williams
Grand Junction, Colorado, USA   USA
1979 Triumph Spitfire 1500 "Spitty"
In reply to # 1490994 by bazsimoci Hi! Accordings to my calculations the ballast wire is 1630mm long, goes from the starter solenoid with the other cables to the junktion to the dashboard and ended with the white cabel to the PDWA lamp and a white cable from the top fuse........ The resistance is 1,3-1,5 Ohm

1630mm (64.17323 inches) with your information & image I can find where it in on my loom.

Thank you Balázs, for sorting that ballast wire out and posting the image.

colodad Avatar
colodad Silver Member Calvin Williams
Grand Junction, Colorado, USA   USA
1979 Triumph Spitfire 1500 "Spitty"
In reply to # 1490999 by bazsimoci It happened what i feared from... The american loom doesnt fit with the european wire extension to the rear harness...
The american loom has two 5-er connector, the european has one 7-er...
And the american ignition switch has 7 connector, the european has just 4...
At least the steering column switches, they fit into their place.

yes, and other years have changes too.
That is probably why this information is hard to find, but the ballast wire is a great find.. thanks again..

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Tonyfixit Avatar
Tonyfixit Tony M
Duncan, British Columbia, Canada   CAN
When I took apart my loom, where (I assume) the resistance wire WAS, there was just melted plastic and bare, green, copper wire!
Strangely the engine still ran.

Yellowhawk Valley Avatar
walla walla, washington, USA   USA
1969 Triumph Spitfire "Walla Walla"
1969 Triumph Spitfire "Portland"
1972 Triumph Spitfire MkIV "Spokane"
1975 Triumph Spitfire 1500 "Dayton"    & more
For most years between at least the early Mk3 and the very late 1500's the wiring is slightly different as far as what is there. In all years it is also obviously different in lengths of the various wires due to the right and left hand drive setups. You have to be cautious on which you use - make sure it matches your car. I will add that many of the circuits are the same as far as setup, just not in wire length. We might even be surprised in how many of those match.
Dan

bazsimoci Avatar
bazsimoci Balázs Kutasi
Várdomb, Tolna, Hungary   HUN
There is the second part of the wiring loom drawing:

https://drive.google.com/file/d/0B5zTn4EVjvWPSURrQUVsVVMzc2c/view?usp=sharing

Can anybody say what to do this little box beside of the wiper motor...?



Edited 1 time(s). Last edit at 2017-10-14 08:42 AM by bazsimoci.


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colodad Avatar
colodad Silver Member Calvin Williams
Grand Junction, Colorado, USA   USA
1979 Triumph Spitfire 1500 "Spitty"
I do not have that box.
describe the materials of the box, and should be some numbers on the box.


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mkivmarty Avatar
mkivmarty Marty Yanik
N.E.Ohio, USA   USA
That little piece in your hand looks like a ballast resistor. Try to clean the contacts on the ends and get a resistance reading on it.

Marty

colodad Avatar
colodad Silver Member Calvin Williams
Grand Junction, Colorado, USA   USA
1979 Triumph Spitfire 1500 "Spitty"
was this box on the 79 spitfire ?

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